Platelet functions before, during and after labor.
Platelet functions were evaluated in 20 healthy pregnant women in the last months of pregnancy, during labor, and 5-12 weeks after labor. The results showed an increased platelet count, bleeding time and nitroblue tetrazolium (NBT) test, as well as an increased plasma calcium level postlabor. ADP- and epinephrine-induced aggregation during labor was markedly decreased, followed by a statistically significant increase postlabor. These findings are in correlation with the high incidence of thromboembolic phenomena occurring postlabor.
D000293:Adolescent; D000328:Adult; D001792:Blood Platelets / Q000502:physiology*; D005260:Female; D006487:Hemostasis; D006801:Humans; D007743:Labor, Obstetric; D010974:Platelet Aggregation; D011247:Pregnancy; D013997:Time Factors